Graining-tool



P. A. GSTALDER.

GRAINING TOOL.

' vAPPLICATION FILED )UEE 18. 1919. 1,347,029

Patented July 20, 1920.

- I N V EN TORA ATTORNEYS,

UNITED STATES PATENT OFFICE.

PAUL A. GSTALDER, 0F PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO THE OHIO VARNISHOOMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

GRAINING-TOOL.

Application filed June 18,

To @ZZ 'whom it may concern:

Be it known that I, PAUL A. GSTALDER, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a certain new and useful Improvement in Graining-Tools, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to tools adapted for the maniplation of graining compound applied to a surface to enable the imitation of the grain of woods. One of the objects of the invention is to provide such a tool in the form which may be very readily and quickly operated to make the graining figures and also to properly blend them. Another ob-- ject is to provide a tool specifically adapted for imitating the peculiar grain of birds-eye maple. The invention is shown in the drawings hereof and is hereinafter more fully described and its essential characteristics set out in the claim.

In the drawings, Figure l is a side elevation of my improved graining tool; Fig. 2 is an end view thereof; Fig. 3 is a development of the surface of the roller portion of the tool.

As shown in Figs. l and 2, A indicates the body of the tool which may be a wooden block. This body is concaved in the upper side as indicated at a. Above the body is a roller B of a diameter substantially equal to the width of the body A and rotatably carried by the body and depending into the con-- cavity a. Below the body are suitable bristles C mounted in the under portion of the body.

The roller B is shown as rotatably carried by the body by means of brackets or ears D secured by screws l to the ends of the body and near the upper ends having eyes which receive gudgeons b projecting from the Specification of Letters Patent.

Patented July 20, 1920.

1919. serial No. 304,985.

roller. On the surface of the roller is a pad B1 of rubber or other elastic material which is formed with projections to effect the graining action. These projections are preferably of two forms, namely, rings b1, which are eccentrically formed, and crescents b2. Such projections are varied in sizes and are grouped irregularly on the surface of the pad as shown most clearly in Fig. 8.

In the manipulation of the tool shown, after the graining compound has been applied to the surface and is wet, the operator grasps the tool, with his thumb and fingers engaging opposite edges of the body around the roller constituting therewith a handle, and with the bristles downward he draws the tool with a wavy motion over the surface, giving the latter the streaked effect of wood. He then reverses the position of the tool and draws the roller over the-surface, pressing downwardly slightly. In this downward pressure the engaged projections are compressed and the rings 1 obtain a suction effect as they leave the surface, which draws up the material in a peculiar manner. The crescents act to lift such inaterial as adheres to them but without the suction effect. The result is the formation of different figuring similar to the irregular spotting of birds-eye maple. After the graining compound has been treated in the manner described, it is allowed to dry and then covered with a suitable varnish in the usual manner.

Having thus described my invention what claim is A graining tool comprising a roller having projections, in the form of non-concentric, suctorial, elastic rings, irregularly grouped over its surface.

In testimony whereof, I hereunto afliX my signature.

PAUL A. GSTALDER. 

